4Pcs Step Down Power Supply Voltage Regulator Module DC DC Adjustable Converter 5A 4~38V Features: 1. material ensure the durability and stability of the product. 2. Adopt 2pcs 3mm screws installation method, easy to install and remove. 3. This is DC-DC adjustable converter step down power supply module with stable performance. 4. High power, the maximum is 75W, wave power indicator light with heat sink   Specification: Condition: Quantity: 4PCS Current: 5A Function: DC 4-38V to 1.25-36V High power, maximum 75W, wave power indicator light with heat sink Output Current: 0-5A, recommended for use within 4.5A Output Power: up to 75W Working Temperature: -40~+85 degrees Working Frequency: 180KHz Conversion Efficiency: up to 96% Load Adjustment Rate: S(I) ≤ 0.8% Power Indicator: Yes Short Circuit Protection: Yes (limited current 8A)  Over Temperature Protection: Yes (automatically turn off the output after over temperature) Input Reverse Connection Protection: None, (If necessary, please input a large current diode in the input string) Installation Method: 2 x 3mm Screws Wiring Method: Welding, V-IN is input, V-OUT is output   Package Listing: 4 x Development Boards